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// The WeakSet constructor creates an empty WeakSet by default.
load(libdir + "asserts.js");
new WeakSet();
new WeakSet(undefined);
new WeakSet(null);
assertThrowsInstanceOf(() => WeakSet(), TypeError);
assertThrowsInstanceOf(() => WeakSet(undefined), TypeError);
assertThrowsInstanceOf(() => WeakSet(null), TypeError);